৯৩৫১
A started a business with tk 21000 and is joined afterwards by B with tk 36000. After how many months did B join if the profits at the end of the year are divided equally?
উত্তর
5
৯৩৫২
If 12 carpenters, working 6 hours a day, can make 460 chairs in 24 days, how many chairs will 18 carpenters make in 36days, each working 8 hours a day?
উত্তর
1380
৯৩৫৩
A and B can do a work in 12days, B and C in 15days, C and A in 20days. If A, B and C work together,They will complete the work in:
উত্তর
10 days
৯৩৫৪
A tap can fill a tank in 6hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely?
উত্তর
3hrs 45 min
৯৩৫৫
A man walking at the rate of 5 km/hr crosses a bridge in 15 minutes. The length of the bridge (in meters) is-
উত্তর
1250
৯৩৫৬
A train takes 18 sec to pass completely through a station 162m long and 15 seconds through another station 120m long.The length of the train-
উত্তর
90m
৯৩৫৭
If a boat goes 7km upstream in 42 minutes and the speed of the stream is 3kmph, then the speed of the boat in still water is-
উত্তর
13 km/hr
৯৩৫৮
Tea worth tk.126 per kg and Tk.135 per kg are mixed with a third variety in the ratio 1:1:2. If the mixture is worth Tk.153 per kg, The price of third variety per kg will be:
উত্তর
Tk. 175.50
৯৩৫৯
In how many years, Tk. 150 will produce the same interest @8% Tk. 800 produce in 3 years @4.5%?
উত্তর
9
৯৩৬০
The compound interest on Tk 30,000 at 7% per annum is TK.4357. The period (in years) is:
উত্তর
2.5